API	Application Programming Interface
COVID-19	Coronavirus Disease 2019
I2C	Inter-Integrated Circuit
IoT	Internet of Things
LR	Linear Regression
ML	Machine Learning
MAE	Mean Absolute Error
MAPE	Mean Absolute Percentage Error
MQTT	Message Queuing Telemetry Transport
OBNiSE	National Digital Observatory of Smart Environments
PLS	Partial Least Squares
PWM	Pulse Width Modulated
R2	R-squared
RSS	Residual Sum of Squares
RMSE	Root Mean Square Error
SD	Secure Digital
SARS	Severe Acute Respiratory Syndrome
SPI	Serial Peripheral Interface
TSS	Total Sum
UART	Universal Asynchronous Receiver–Transmitter
WD	Wearable Device